Suction nozzle



Cyr

l/VILLAM H. If. BENNETT, 07? GHGAG-O, EL'JINOIS, ASSGNOR T0 AMERICAN MANGA- NESE STEEL COIYPANY, 0F AUGUSTA, BIAINE, A CORPORATIGN OF INAINE.

SUCTION NOZZLE.

Application filed `September 22, 1920.

To aZZ whom if; may concern.'

Be it known that l, lVILLn-ur ll. l.. Enit- Nnrr, a citizen of the United `States, and a resident of Chicago, in the county of Cook and State of illinois, have made and invented certain new and useful improvements in Suction Nozzles, of which the following is a specification.

My invention relates to suction nozzles such as are provided at the ends of the suction lines of sand and gravel dredoes. ln the operation of sand and gravel dredges and other similar apparatus it is customary to provide the end of the suction line with a nozzle through which the liquid and accompanying sand and gravel may enter. ln those instances, however, where a rotary or cutter nozzle is not used, considerable diifiK culty has been experienced due to the nozzle becoming clogged, particularly where the dredging operations are talring place in a gravel deposit which contains considerable roots or other foreign material. This rapid clogging of the nozzle not only materially limits the .output of the dredge but oftentimes requires the suction line to be raised and the nozzle to be cleaned.

ri further disadvantage of this particular type of nozzle has heretofore been occasioned by the nozzle resting upon the top of the deposit and failing to work its way therein, particularly when the nozzle encounters a stone or other obstruction tending to block the path of the nozzle. lt is accordingly an object of my invention to provide a suction nozzle of the non-rotary type which will bev capable of being operated under the most adverse circumstances without becoming clogged, it having been found that my improved nozzle will. efliciently and continuously operate in gravel deposits containing roots and other foreign material.

A further object is to provide a nozzle which will at all times tend to dig and work its way into the deposit and pass over or around any obstruction which tends to block its path, this tendency for the nozzle to dig its way into the deposit resulting in the nozzle being able to displace any stones or other obstructions which may have become temporarily located against the inlet openings of the nozzle,

ii further object is to provide a nozzle which is rugged and durable in construction and so designed that the inlet openings will Specification of Letters latent.

Serial o. 412,053.

greatly exceed the capacity of the suction line, so that should one or more of the openings become temporarily clogged the remaining openings will be sufficient to take care of the requirements of the suction line.

i further object is to so construct the nozzle that the area of the inlet openings increase inwardly from the external surface of the nozzle, so that should any stones or other foreign material pass within the external surface of the nozzle they will not become wedged within the inlet openings but will readily negotiate the remaining distance and enter freely into the suction line and, being necessarily restricted in size, will pass freely through the pump.

W7 ith the foregoing and other objects in view, my invention consists in the improved suction nozzle for sand and gravel dredges illustrated in the accompanying drawings and described in the following specification and in the combination and arrangement of parts and in the details of construction hereinafter described and claimed'7 it being understood that changes may be made within the scope of the claims without departing' from the spirit of the invention.

The preferred embodiment of my invention is disclosed in the accompanying drawings, wherein:

Figure l is a view in vertical longitudinal section of my improved suction nozzle and adjoining fixture for securing it to a suction line;

Figure 2 is a bottom plan view of the nozzle proper;

Figure 3 is a view in vertical longitudinal section of a somewhat modified form of nozzle; and

Figure l is a view in section taken on the line 4--4 of Figure 3.

Referring specifically to the several views, wherein similar reference numerals riesig nate corresponding parts throughout, the nozzle is composed of a base l() whicA is provided with suitable openings ll for the reception of holding bolts l2 whereby the nozzle is secured to an elbow or adjoining fixture 13, which in turn is provided with suitable mea-ns for securing it to a suction line. The nozzle is provided with the inclined bars 14 which are connected at their lower extremities to the base l() and merge one into the other at their upper extremities so as to form the apex or digging end 15. rllhe nozzle is thus formed with a conical shaped body and contains the tapering l wardly as Well as toward the base oi the' cone. The apex 15gis provided with the protruding and digging end which during the normal operationvot the nozzle tends to torce` its way into the deposits and thus provide for Athe efficient action of the dredge. The bars terminate flush With the external edge of the base and should any large stones, sticks or foreign inaterialitend to cling to the external surface of the nozzle Adue to the suctionand inrusliing water, they will bre brushed out'of 'the Way as the nozzlel forces its Way into the deposit, thus moving` thestones or other obstructions along' its external surface vtoward Vand beyond the base.

The conical shape of the nozzle and the plurality of openings with which itis providedinsures an inlet arealaigely in en cess ot the requirements of the suction line, so that should by any chance onevoi more ot the nozzle openings vbecome temporarily clogged they dredge Will operate at its full eiiicieney ,due to the fact that the remaining openings ofthe nozzle will ordinarily be sutli'cient to take care of the requirements oiC the suction line. The obstructions, however, Will be rapidly removed or displaced Vas'the `nozzle Worksits Way into the deposit as above outlined.

I have illustratedthe nozzle in use in connection with ailo elbow or fitting 13 but it Will be readily apparent that my iinproved nozzle may be secured'directly tov the suction line or to such. otherlittings as Willbringthe nozzle into the required position, depending upon the peculiar circumstances under Which the nozzle may, at that time, be Working.

The somewhat modified form of nozzle illustrated in Figure 3 is.characterized by the factfthat the base v17 pai-takes more ot the nature oit an ordinary vflange and the bars Which deiine 'the conical body ot the nozzle protrude from and adjacent the inner yedge of the flange, which nozzle I have found Works most satisfactorily under certain conditions and. although the outstanding flange of the base tends to prevent the sliding ot' stones or other obstructions from the base ot the nozzle, yet l have ltound that the action ot the nozzle as it digs its ive-y into the deposit will under. certain conditions eliminate such obstructions. My improved nozzle is preferably formed as a single casting and, being composed of some hard Wear-resisting material, such as maiiganese steel, Will be rugged and durable and capable of rendering` etlicient and continuous service over a long period of time and,` being entirely tree of any moving or rotating parts, Will require but little or no attention and `Will efficiently perform the service for which it is intended.

Having thus described and explained my invention, l claim and desire to secure by Letters Patent: Y

l. A suction line nozzle comprising a sul stantially conical shape body'fvvith inlet` openings, in the side Wall thereof and an outlet opening through the base, and a digging point formed bythe apex ofthe body.

2. A nozzle vcomprising a substantially conical shape body having inlet and outlet openings and a digging` point at the apex` thereof, and means for securing said body to a pipeline.

A, nozzle comprising a base, a conical shape body carriedthereby and provided With openings therein enlarging toward the base, said openings provided with inwardly diverging sidewalls, and means forsecur-r ing the nozzle to ar pipe line.

a. A. nozzle comprising a base, a conical shape body carried thereby andy provided with openings therein enlarging toward-the base, said openings provided With inwardly diverging side Walls, the apen of the body securing the nozzle to a pipe line.

forming a digging point, and means forv 5. Ai nozzle formed a casting and coinpiising a base, means associated therewith for; securing said base to aA pipe lines, outstanding bars carried by said base and merg ing at their upper ends to form ya ,conicalv shape bodyaldigginhl point carried at the upper end of said body.

Signed at Chicago, in the county ot Cook` and State ol lllinoiis, thissixteenth dayo'l September, A, -l).,1920. l

WILIAM lvl. K. BENNETT. Witnesses:

NELLIE C, BAsoN, M, E. Dormi. .y

ionv 

